degradable
adjective uk/dɪˈɡreɪ.də.bəl/ us/dɪˈɡreɪ.də.bəl/
可降解的，能够自然分解的
A degradable substance can change into a more simple chemical structure, especially over time.
These bags are made of degradable plastic. 这些袋子是用可降解塑料制成的。
See also: biodegradable